public static void SetCallback(
IList <IHubConnectionAdapter> connections,
StatisticsCollector statisticsCollector)
{
foreach (var connection in connections)
{
connection.On(SignalRConstants.RecordLatencyCallbackName, (IDictionary <string, object> data) =>
{
var receiveTimestamp = Util.Timestamp();
data.TryGetTypedValue(SignalRConstants.Timestamp, out long sendTimestamp, Convert.ToInt64);
var latency = receiveTimestamp - sendTimestamp;
statisticsCollector.RecordLatency(latency);
SignalRUtils.RecordRecvSize(data, statisticsCollector);
});